碾压砼是一种超干硬性砼。

Roller compacted concrete (RCC) is a super-stiff concrete.

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碾压贫混凝土是一种超干硬性混凝土，在国内，其应用于路面基层的工程实例较少。

RCC lean concrete is one kind of super-stiff concrete, and there are only a few engineering examples in which it applied to the pavement base in domestic.

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研究不同浓度PEG、不同处理时间渗透处理对超干杉木、马尾松和黑松种子活力的影响。

This paper dealt with the effects of PEG pretreatment, including different concentrations and treat time, on the vigor of ultradried seed, such as Cunninghamia lanceolata and Pinus massoniana.

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So, your superego isn't only telling you not to do bad things, it's telling you not to think bad things.

超我不仅要求你别干坏事，还要求你不要有做坏事的想法。

耶鲁公开课 - 心理学导论课程节选